CN103602215B - Modified epoxy primer - Google Patents
Modified epoxy primer Download PDFInfo
- Publication number
- CN103602215B CN103602215B CN201310517893.2A CN201310517893A CN103602215B CN 103602215 B CN103602215 B CN 103602215B CN 201310517893 A CN201310517893 A CN 201310517893A CN 103602215 B CN103602215 B CN 103602215B
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- CN
- China
- Prior art keywords
- parts
- modified epoxy
- epoxy resin
- priming paint
- epoxy primer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000004593 Epoxy Substances 0.000 title claims abstract description 37
- 239000003822 epoxy resin Substances 0.000 claims abstract description 25
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 25
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 15
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 15
- 239000013008 thixotropic agent Substances 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- 239000002270 dispersing agent Substances 0.000 claims abstract description 9
- 239000003973 paint Substances 0.000 claims description 34
- 230000037452 priming Effects 0.000 claims description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 15
- 239000013530 defoamer Substances 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 229910019142 PO4 Inorganic materials 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 5
- GTDHYNXLIKNVTJ-UHFFFAOYSA-N n-(1-hydroxy-2-methylpropan-2-yl)octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NC(C)(C)CO GTDHYNXLIKNVTJ-UHFFFAOYSA-N 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910002012 Aerosil® Inorganic materials 0.000 claims description 3
- 239000004359 castor oil Substances 0.000 claims description 3
- 235000019438 castor oil Nutrition 0.000 claims description 3
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- -1 Acyl amine Chemical class 0.000 claims 1
- 239000003610 charcoal Substances 0.000 claims 1
- 238000001802 infusion Methods 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 abstract description 14
- 239000004411 aluminium Substances 0.000 abstract description 12
- 238000010276 construction Methods 0.000 abstract description 9
- 150000002118 epoxides Chemical class 0.000 abstract description 9
- 239000000945 filler Substances 0.000 abstract description 3
- 229920002647 polyamide Polymers 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 2
- 239000004952 Polyamide Substances 0.000 abstract 1
- 239000002518 antifoaming agent Substances 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000049 pigment Substances 0.000 abstract 1
- 239000002987 primer (paints) Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 238000000576 coating method Methods 0.000 description 5
- 239000012752 auxiliary agent Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 235000021317 phosphate Nutrition 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 230000002421 anti-septic effect Effects 0.000 description 3
- VBICKXHEKHSIBG-UHFFFAOYSA-N beta-monoglyceryl stearate Natural products CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 239000002105 nanoparticle Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 3
- 239000011863 silicon-based powder Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000013615 primer Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 125000004469 siloxy group Chemical group [SiH3]O* 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000007786 learning performance Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- NDYNABNWLRVCDO-UHFFFAOYSA-N phosphoric acid silver Chemical compound [Ag].P(O)(O)(O)=O NDYNABNWLRVCDO-UHFFFAOYSA-N 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- IPCXNCATNBAPKW-UHFFFAOYSA-N zinc;hydrate Chemical compound O.[Zn] IPCXNCATNBAPKW-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
The invention provides a modified epoxy primer which comprises the following components: by weight, 25-65 parts of epoxy resin, 1-10 parts of nano-silicon oxide, 2-5 parts of a thixotropic agent, 1-3 parts of a dispersant, 10-20 parts of an anticorrosive filler, 10-20 parts of pigments and fillers, 0.1-1 part of an antifoaming agent and 20-40 parts of a polyamide curing agent, wherein epoxide equivalent of the epoxy resin is 250-400EE. The invention provides a modified epoxy primer which can be directly coated on the surface of an aluminium product. The modified epoxy primer has good adhesion to the surface of an aluminium product. Construction process can be simplified and costs can be reduced. In addition, the modified epoxy primer provided by the invention has good corrosion resistance.
Description
Technical field
The present invention relates to primer material, in particular to a kind of modified epoxy priming paint.
Background technology
Numerous industry fields such as national defence, aviation, machinery, instrument use aluminum or aluminium alloy make shell, but be because gold
The chemical property belonging to aluminum is relatively more active, in atmosphere can be oxidized, causes aluminium material surface to turn black, and the oxide-film of Surface Creation
There is the shortcomings such as compactness is poor, hardness is low, it is impossible to meet the requirement of anticorrosion and decorative appearance, it is therefore desirable to take certain arranging
Execute the product workpiece that aluminium is made to protect and decorate.
At present, generally use coating aluminium is protected or decorates, coating according to coating sequencing include transition paint,
Anti-corrosion primer and finish paint.A lot of priming paint are bad at the adhesive force of aluminium material surface, need to coat transition paint in advance and ask to solve this
Topic, so causes cost raising and the efficiency of construction problem under relatively low.
Summary of the invention
The present invention solves deficiency of the prior art, it is provided that a kind of modified epoxy that can be applied directly to aluminium material surface
Priming paint, not only good with the adhesive force of aluminium material surface, construction technology can be simplified again and reduce cost.
The technical scheme is that a kind of modified epoxy priming paint, it is characterised in that in parts by weight, including with
Under each component: epoxy resin: 25～65 parts, nano silicon oxide: 1～10 part, thixotropic agent: 2～5 parts, dispersant: 1～3 part, anti-
Rotten filler: 10～20 parts, color stuffing: 10～20 parts, defoamer: 0.1～1 part；Polyamide-based firming agent: 20～40 parts；Described
The epoxide equivalent of epoxy resin is 250～400EE.
Preferably, in parts by weight, including following component: epoxy resin: 45 parts, nano silicon oxide: 5 parts, touches
Change agent: 3.5 parts, dispersant: 2 parts, anticorrosive packing: 15 parts, color stuffing: 15 parts, defoamer: 0.5 part；Surplus is polyamide-based solid
Agent；The epoxide equivalent of described epoxy resin is 250～400EE.
Preferably, described nano silicon oxide is nano silicon oxide concentrated plasm or nano oxidized Si powder.
It is highly preferred that the particle diameter of described nano oxidized Si powder is 1～50nm, the specific surface of described nano oxidized Si powder
Long-pending more than 100m2/g。
Preferably, described thixotropic agent is organobentonite, castor oil hydrogenated or aerosil.Currently preferred three
Planting thixotropic agent is all that epoxy primer thixotropy is affected preferable thixotropic agent, by increasing capacitance it is possible to increase priming paint viscosity also makes it have thixotropy
Auxiliary agent.
Preferably, described dispersant is the mixture of stearmide and higher alcohol.In inventive formulation with stearmide with
The mixture of higher alcohol is as dispersant, and two kinds mix lubricity and the heat stability that can improve priming paint.
It is highly preferred that described stearmide is vinyl bis-stearamides, stearic acid monoglyceride and three glycerol stearate
One in ester or its mixture；Described higher alcohol is the alcohol in the range of C6～C10.
Preferably, described anticorrosive packing is composite phosphate.The main chemical compositions of compound phosphoric acid silver is aluminum orthophoshpate zinc
Hydrate, selects it to make priming paint have more preferable antiseptic property as anticorrosive packing.
Preferably, described color stuffing is white carbon black, titanium dioxide or iron oxide red.The color stuffing that the present invention relates to is that row is commonly used in the trade
Color stuffing.
Preferably, described defoamer is organic silicone defoamer.Defoamer effect is to eliminate or prevent at modified epoxy
The life of priming paint, pack and use during produce bubble.
The defect solving prior art of the present invention, has the advantages that
1. in inventive formulation, the epoxide equivalent of major ingredient epoxy resin is that 250～400EE(epoxide equivalents refer to containing 1mol
The epoxy resin quality of epoxy radicals, the molecular weight of the biggest epoxy resin of epoxide equivalent is the biggest), the epoxy resin that the present invention selects belongs to
In the epoxy resin of middle-molecular-weihydroxyethyl, the epoxy resin of middle-molecular-weihydroxyethyl has preferable crosslink density and physics with firming agent after reacting
Balance, the paint film resistant to chemical media of preparation, physical and mechanical properties is good, be prone to construction.
2. the present invention has selected organobentonite, castor oil hydrogenated or aerosil to be thixotropic agent in formula, joins
After side with the addition of these several thixotropic agent, make priming paint have relatively low viscosity when construction, improve modified epoxy priming paint mobility, easily
In construction, thus improve efficiency of construction；Because there being the existence of thixotropic agent after construction so that priming paint at low shear rates may be used
To prevent color stuffing from settling.
3. in the formula of the present invention, the content of nano silicon oxide controls 1～10%, the siloxy in nano silicon oxide and change
The aluminium learning performance forms chemical bond, and the existence of chemical bond enhances the adhesive force of epoxy primer and aluminium material surface, simultaneously nanometer
Particle also has the effect closing microvoid, improves the compactness of primer coating film, strengthens the antiseptic property of priming paint, but nano oxidized
The consumption of silicon to control, within the scope of certain, if excess can cause nanoparticle to be reunited, not reach the effect of nano modification
Really, the optimum amount of the present invention is 6%.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the present invention, and enable the above-mentioned advantage of the present invention brighter
Aobvious understandable, below in conjunction with specific embodiment, the present invention is further detailed explanation.
Embodiment 1
(1) by 65 parts of epoxy resin, 1 part of nano silicon oxide concentrated plasm, 2 parts of thixotropic agent, 0.1 part of defoamer, 1 part of dispersant
Put in homogenizer with 10.9 parts of auxiliary agents and stir, standby；
(2) component mixture that will stir in step (1) adds 10 parts of composite phosphates and 10 parts of color stuffings, then
By mixture mixing and stirring, grind, be filtrated to get the component one of modified epoxy priming paint through skin grinder；
(3) component one of the modified epoxy priming paint of preparation in step (2) is mixed can make with 20 parts of polyurethane curing agents
Standby modified epoxy primer coating.
Embodiment 2
(1) by 45 parts of epoxy resin, 5 parts of nano silicon oxide concentrated plasms, 3.5 parts of thixotropic agent, 0.5 part of defoamer, 2 parts of dispersions
Agent and 14 parts of auxiliary agents are put in homogenizer and are stirred, standby；
(2) component mixture that will stir in step (1) adds 15 parts of composite phosphates and 15 parts of color stuffings, then
By mixture mixing and stirring, grind, be filtrated to get the component one of modified epoxy priming paint through skin grinder；
(3) component one of the modified epoxy priming paint of preparation in step (2) is mixed can make with 30 parts of polyurethane curing agents
Standby modified epoxy primer coating.
Embodiment 3
(1) by 25 parts of epoxy resin, 10 parts of nano silicon oxide concentrated plasms, 5 parts of thixotropic agent, 1 part of defoamer, 3 parts of dispersants
Put in homogenizer with 16 parts of auxiliary agents and stir, standby；
(2) component mixture that will stir in step (1) adds 20 parts of composite phosphates and 20 parts of color stuffings, then
By mixture mixing and stirring, grind, be filtrated to get the component one of modified epoxy priming paint through skin grinder；
(3) component one of the modified epoxy priming paint of preparation in step (2) is mixed can make with 40 parts of polyurethane curing agents
Standby modified epoxy primer coating.
Performance test
The modified epoxy priming paint preparing embodiment 1-3, adds polyurethanes firming agent, prepares modified epoxy priming paint and is coated with
Layer, coating layer thickness about 200 μm, these coatings have been carried out performance test, its result is as shown in table 1.
The epoxy resin model related in embodiment is NPES-901X75, and other raw material components etc. are all that market can be easy to get
Raw material.The epoxide equivalent of NPES-901X75 epoxy resin is that 250～400EE(epoxide equivalents refer to containing 1mol epoxy radicals
Epoxy resin quality, the molecular weight of the biggest epoxy resin of epoxide equivalent is the biggest), the epoxy resin that the present invention selects belongs to Middle molecule
The epoxy resin of amount, the epoxy resin of middle-molecular-weihydroxyethyl has preferable crosslink density and physical equilibrium with firming agent after reacting.
Find out from the result of embodiment 1-3, the chemical mediator better performances such as the water-resistant coating of preparation and salt fog resistance；Adhesive force and soft
The physical and mechanical propertiess such as toughness are good, it is easy to construction.
Result in Table 1 can be seen that, the ratio shared by nano silicon oxide concentrated plasm in the base paint formulation of embodiment 1-3
Be gradually increased, wherein when embodiment 2 nano silicon oxide concentrated plasm accounts for 6% the salt fog resistance of film be preferably less than 6% make with
Nano silicon oxide concentrated plasm consumption to increase, resistance to salt fog resistance is up, this is because siloxy and the preferable aluminium profiles of activity
The atom formation chemical bond that material surface is active, enhances the adhesive force of epoxy primer and aluminium material surface under the effect of chemical bond,
Nanoparticle also has the effect closing microvoid simultaneously, improves the compactness of primer coating film, strengthens the antiseptic property of priming paint, but
The consumption of nano silicon oxide to control, within the scope of certain, nanoparticle to be caused to reunite, do not reach and receive when more than 6%
The effect that rice is modified, the optimum amount of the present invention is 6%.
Performance to the modified epoxy priming paint of preparation in embodiment with the epoxy primer of commercially available same type same use
Carrying out test comparison, its result is as shown in table 2.From Table 2, it can be seen that the hardening time of the modified epoxy priming paint of the present invention,
The performances such as adhesive force, pliability, impact strength are suitable with the performance of commercially available epoxy primer, but at the bottom of the modified epoxy of the present invention
The epoxy primer that resistance to water, salt fog resistance and the petrol-resistance geometric ratio of paint are commercially available is the best many.
The above, the only detailed description of the invention of the present invention, protection scope of the present invention is not limited thereto, any ripe
Know those skilled in the art in the technical scope that the invention discloses, the change that can readily occur in or replacement, all should contain
Cover within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should be defined with claim
It is as the criterion.
Table 1 the performance test results
Modified epoxy priming paint in table 2 embodiment and the performance comparison result of Commercial epoxy priming paint
Claims (2)
1. a modified epoxy priming paint, it is characterised in that in parts by weight, including following component: epoxy resin 45
Part, nano silicon oxide concentrated plasm 5 parts, thixotropic agent 3.5 parts, dispersant 2 parts, anticorrosive packing 15 parts, color stuffing 15 parts, disappear
Infusion 0.5 part, polyurethane curing agent 30 parts；Described epoxy resin is NPES-901X75 type epoxy resin；Described defoamer is
Organic silicone defoamer；Described dispersant is the mixture of stearmide and higher alcohol, and described stearmide is that vinyl is double hard
Acyl amine, described higher alcohol is the alcohol in the range of C6～C10；Described anticorrosive packing is composite phosphate；Described color stuffing is charcoal
Black, titanium dioxide or iron oxide red.
2. according to a kind of modified epoxy priming paint described in claim 1, it is characterised in that described thixotropic agent be organobentonite,
Castor oil hydrogenated or aerosil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310517893.2A CN103602215B (en) | 2013-10-28 | 2013-10-28 | Modified epoxy primer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310517893.2A CN103602215B (en) | 2013-10-28 | 2013-10-28 | Modified epoxy primer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103602215A CN103602215A (en) | 2014-02-26 |
| CN103602215B true CN103602215B (en) | 2017-01-11 |
Family
ID=50120486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310517893.2A Expired - Fee Related CN103602215B (en) | 2013-10-28 | 2013-10-28 | Modified epoxy primer |
Country Status (1)
| Country | Link |
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| CN (1) | CN103602215B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105295629A (en) * | 2014-07-24 | 2016-02-03 | 镇江市方舟运输有限公司 | High-glossiness water-based automotive paint |
| CN108031826A (en) * | 2018-01-09 | 2018-05-15 | 浙江今飞凯达轮毂股份有限公司 | A kind of casting aluminium alloy wheel hub pin hole method for repairing and mending |
| CN108976985A (en) * | 2018-06-27 | 2018-12-11 | 河南孚点电子科技有限公司 | A kind of electronic product casing coating and preparation method thereof |
| CN112745733A (en) * | 2019-10-29 | 2021-05-04 | 常州天瑞新材料科技有限公司 | Interior wall sealing primer and preparation method thereof |
| CN116333571B (en) * | 2023-02-21 | 2024-05-17 | 金桥德克新材料股份有限公司 | Composite for protecting aluminum material and preparation method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102344738A (en) * | 2010-07-30 | 2012-02-08 | 江苏中矿大正表面工程技术有限公司 | Composite antirust coating |
| CN102174241B (en) * | 2010-12-31 | 2015-04-22 | 东莞市阿比亚能源科技有限公司 | Silver paste for photovoltaic assembly |
| CN102367354A (en) * | 2011-08-26 | 2012-03-07 | 江苏达胜热缩材料有限公司 | Solvent-free epoxy primer for corrosion protection of 3 polypropylene (PP) at craters of steel pipelines |
| CN102408757B (en) * | 2011-09-15 | 2014-03-05 | 中国科学院金属研究所 | Solvent-based nano silicon oxide concentrated pulp and preparation method thereof |
| CN102618144A (en) * | 2012-03-26 | 2012-08-01 | 江苏冠军涂料科技集团有限公司 | Special primer for heavy-duty machinery |
| CN103173099A (en) * | 2013-04-15 | 2013-06-26 | 无锡市太湖防腐材料有限公司 | Anti-corrosion coating based on epoxy resin and preparation method thereof |
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Effective date of registration: 20180326 Address after: Wujiang District of Suzhou city in Jiangsu province 215214 Li Zhen Bei she Community Road No. 1288. Patentee after: Jiangsu Dasheng Thermal Shrinkage Protection Products Co.,Ltd. Address before: Wujiang District of Suzhou City, Jiangsu province 215214 Fen Beishe Town Community Road No. 1288. Patentee before: Jiangsu Dasheng Pyrocondensation Material Co.,Ltd. |
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Granted publication date: 20170111 |